Michael, DG0OPK has been doing a lot of experimenting with running Gqrx on various ARM boards. In this video below, he shows gqrx running on the latest Odroid C2 from Hardkernel, which has a 64 bit, 2 GHz quad-core processor.

Just a quick note that we have got armhf builds enabled for our gqrx/snapshots repository. Armhf refers to ARM architecture with hardware floating point support.

For now I have rebuilt all packages for Ubuntu 12.04 as this seems to be most common Ubuntu used on ARM devices. Later I will also rebuild for Ubuntu 13.04 but there are limits on how much resources one can use when building for armhf and I have to watch out not to abuse this service.

I can imagine that gqrx may not be very useful on all arm devices; however, I hope that at least the driver libraries, the command line tools and maybe even gnuradio itself will be useful.